Group A: telescope, telephone, television, submarine, submerge, subway, could, would

Group B: can’t, don’t, didn’t, it’s, couldn’t, wouldn’t

Group C: better, under, summer, winter, sister, rubber

Group A: thankful, painful, forgetful, fearful, fairness, fitness, illness, darkness

Group B: cry, dry, fly, why, try, reply

Group C: belt, felt, melt, smelt, spelt, tilt

Group A: gym, pyramid, mystery, symbol, mysterious, huge, cute, Christmas

Group B: cute, huge, rule, ruler, rude, Christmas

Group C: he, she, cute, huge, rule, rude

Group A: sure, pure, cure, measure, treasure, brochure, sugar, special

Group B: know, knot, knew, knee, knife, knight

Group C: rain, main. train, brain, rail, snail

Group A: redo, rewrite, retake, rebuild, return. reappear, one, once

Group B: light, bright, fight, flight, night, tight

Group C: one, once, were, was, said, says

Group A: lace, place, misplace, mistake, misread, misbehave, people, chase

Group B: giant, giraffe, city, cycle, race, ice

Group C: have, give, live, love, glove, above

Group A: nicer, later, writer, playful, careful, hopeful, helpful, joyful

Group B: jacket, jar, village, change, badge, edge

Group C: no, go, so , the, they, with

Group A: tale, tail, prey, pray, weight, wait, which, witch

Group B: pretty, because, people, break, steak, they

Group C: chip, chick, much, such, rich, church

Group A: reins, vein, veil, eight, eighteen, eighty, weight, sleigh

Group B: fast, past, last, grass, class, pass, any, many

Group C: bank, thank, sink, pink, think, wink